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GM47/GM48
1
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First edition (April 2002)
2
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Second edition (August 2002)
2
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Third edition (January 2003)
2
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Contents
3
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GM47/GM48 INTEGRATOR’S MANUAL
10
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Part 1: Overview
11
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1. Introduction
13
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Part 4 - Using AT Commands
14
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2. GM47/GM48 Modules
15
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2.3 Features
17
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2.3.2 Short Message Service
18
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2.3.3 Voice Calls
18
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2.3.4 Data
18
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2.4 Service and Support
19
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2.5 Precautions
20
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3. Abbreviations
21
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Part 2: Developer’s Kit
23
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1. INTRODUCTION
27
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2. Using the Developer’s Kit
29
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2.1 Start up Check List
30
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2.2 Developer’s Board Overlay
31
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JP21 JP18
32
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Part 3: Integrating the
37
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Antenna connector
39
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System connector
39
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1.2 Physical Dimensions
40
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2. System Connector Interface
41
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2.3 Grounds
45
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2.5.2 VIO - 2.75V Supply
47
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2.6 Analogue Audio
48
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2.6.3 Microphone Signals
50
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2.6.4 Speaker Signals
51
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2.7 PCM Digital Audio
52
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16 bit data word
53
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13 bit PCM= D13 D0
53
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PCM Timing Diagrams
54
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2.8 Serial Data Interfaces
55
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Serial Data From Module (RD)
56
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Serial Data To Module (TD)
56
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Ω to VCC
57
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2.9 SIM Card Related Signals
59
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2.10 Service/Programming
61
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2.11 Buzzer
61
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2.12 LED
61
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2.15 External I
65
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C Serial Control Bus
65
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2.17 Real Time Clock
66
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Figure 2.10 RTC connections
67
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3. Antenna Connector
68
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4.1.1 General
69
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4.1.2 SIM Card
69
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4.1.3 Antenna
70
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Environmental Conditions
70
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Ω for the ground connection
72
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4.3.2 Antenna Type
73
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4.3.3 Antenna Placement
73
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4.3.4 The Antenna Cable
73
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5. Technical Data
75
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Environmental specifications
76
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Data Storage
76
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6. Declaration of Conformity
77
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7. FCC Certificate
78
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Part 4: Using AT Commands
79
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1.1 Overview
81
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1.2 Syntax Description
81
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1.2.2 AT Command Syntax
82
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Basic Syntax Command
82
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1.2.3 AT Response Syntax
84
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Final Result Code
84
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1.3 Error Codes
85
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1.5 SMS Text Mode
87
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Notification of SMS
88
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Reading messages
88
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Listing messages
88
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1.6 GPRS Communication
89
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2. Call Control
91
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2.3 ATD Dial
92
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2.4 ATH Hang up
94
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2.7 ATP Select Pulse Dialling
95
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2.8 ATT Select Tone Dialling
95
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2.10 AT+CHUP Hang up Call
96
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2.11 AT+CMOD Call Mode
97
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2.12 AT+CVHU Voice Hang-Up
98
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3. Control and Status
101
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LZT 123 7263 R1C
102
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Unsolicited result codes:
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[<number>,<type>]
107
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AT*ECAM?
108
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*ECAM: 0
108
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AT*ECAM=1
108
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3.16 AT+CALA Set Alarm
111
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3.17 AT+CALD Alarm Delete
112
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3.26 AT+CPIN PIN Control
120
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AT+CPIN=“0000”
121
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3.27 AT+CPWD Change Password
122
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AT+CPWD=“SC”,“0000”,“0001”
123
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3.30 AT+CSAS Save Settings
125
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3.31 AT+CSQ Signal Strength
126
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4. Audio
129
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DSPCODEC
130
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Examples
134
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5. Data - CSD/HSCSD
153
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AT+CRLP?
156
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+CRLP: 61,61,48,6,0
156
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+CRLP: 120,120,48,6,2,3
156
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6. Data - GPRS
157
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7. Data - HSCSD
171
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8. GPS Interoperability
177
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8. GPS INTEROPERABILITY
179
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9.2 Low Level Fax Commands
182
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10. Identification
183
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10. IDENTIFICATION
189
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11. Input/Output
191
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Unsolicited Result Codes:
194
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Reading an I/O:
194
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Writing in an Output:
194
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Configuring an I/O:
195
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Checking an I/O status:
195
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Triggering an Input:
196
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Checking an Input Trigger:
196
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12. Interface
197
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12.5 AT+WS46 Mode Selection
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12.6 ATE Command Echo
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12.7 ATV DCE Response Format
199
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13. Network
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EXAMPLES
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13.11 AT+CLCK Facility Lock
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14. Phonebook
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<gindex>
239
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14.11 AT+CPBF Phonebook Find
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14.12 AT+CPBR Phonebook Read
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AT+CPBR=1,99
244
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14.13 AT+CPBS Phone Storage
245
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14.14 AT+CPBW Phonebook Write
246
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15.1 AT+CPIN PIN Control
251
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15.5 AT+CMGF Message Format
254
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PDU Mode
255
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Text Mode
256
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15.7 AT+CMGS Send Message
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PDU mode
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15.9 AT+CMGC Send Command
262
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Unsolicited Result codes:
265
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15.11 AT+CMGR Read Message
268
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15.12 AT+CMGL List Message
274
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15.13 AT+CMGD Delete Message
280
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Only Applicable to Text Mode
281
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AT+CSCB?
287
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+CSCB: 0,“50”
287
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17. SIM Application Toolkit
289
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17.11 *E2STKP STK Send SS
303
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17.12 *E2STKU STK Send USSD
304
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17.13 *E2STKR STK Refresh
305
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Unsolicited result code:
306
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*E2STKTO: <command>
306
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18. Supplementary Services
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18.4 AT+CAOC Advice of Charge
309
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18.12 AT+CCWA Call Waiting
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Example 1
331
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AT+CUSD=1,“*#100#”
332
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